[PATCH] Fix a mergefunc crash caused by bitcasting intrinsics

[Björn Steinbrink]

I probably shouldn't have said crash. The mergefunc pass completes. Without merging the functions. But in enumerate, it created that bitcast of the intrinsic, which is added to the list of users of that intrinsic. What happens then is that the verify pass checks all users of all intrinsics, sees the bitcast, complains about it and aborts.

http://reviews.llvm.org/D3437

REPLY HANDLER ACTIONS
  Reply to comment, or !reject, !abandon, !reclaim, !resign, !rethink, !unsubscribe.